CN206775179U - A kind of microbiological fuel cell energy harvesting and its self-powered circuit - Google Patents
A kind of microbiological fuel cell energy harvesting and its self-powered circuit Download PDFInfo
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- CN206775179U CN206775179U CN201720501824.6U CN201720501824U CN206775179U CN 206775179 U CN206775179 U CN 206775179U CN 201720501824 U CN201720501824 U CN 201720501824U CN 206775179 U CN206775179 U CN 206775179U
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- circuit
- fuel cell
- self
- microbiological fuel
- power point
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Abstract
The utility model provides a kind of microbiological fuel cell energy harvesting and its self-powered circuit.It is deposit microbiological fuel cell using microorganism power supply, the battery biggest advantage of this kind of form is exactly non-maintaining, and endlessly electric energy is provided while environment is improved；Best power point tracking circuit is changed using digital signal processor according to microbiological fuel cell best power point, realizes that best power point tracks by the reference voltage of serial bus control hysteresis comparator.Booster circuit is boosted using coupling inductance, and electric capacity, by controlling the booster circuit work logical time, makes circuit be operated under constant pressure and flow constant-resistance invariable power isotype as energy-storage travelling wave tube.The self-powered circuit is exactly that energy-storage travelling wave tube A can be electrically charged and provide electric energy for best power point tracking circuit and booster circuit after initialization.
Description
Technical field
The utility model is related to microbiological fuel cell field, more particularly to a kind of microbiological fuel cell energy harvesting and
Its self-powered circuit.
Background technology
Microbiological fuel cell is a kind of new fuel cell technology developed rapidly in recent years.Because it can be
Chemical energy in biomass can be converted into electric energy while degradation of contaminant, higher energy conversion efficiency can be obtained, be
Future alleviates the effective way of the energy and environmental problem, causes the further investigation of researcher in recent years.It is just only right
For " air-negative electrode " microbiological fuel cell prepared by laboratory, its maximum power density is in short several years from the past
Only 1mW m-26.9W m are developed into as leap-2.Traditional measure fuel battery power density method is to utilize a series of differences
The outer meeting resistance of value obtains its corresponding voltage value, or carries out Electrochemical Scanning using potentiostat.Within non-essential resistance is equal to
During portion's resistance, its maximum power density is just obtained.This measurement result represents the output potentiality of microbiological fuel cell, but not
Equal to the actual active power of battery, because electric energy caused by battery changes into heat energy rather than by electronic product institute by outer meeting resistance
Utilize.In addition, the maximum power output of microbiological fuel cell is also with internal drag affecting parameters（Such as concentration of substrate, PH and temperature
Degree）Change and change.
In order to effectively utilize the electric energy of microbiological fuel cell output, most common method is passive using ultracapacitor
Collect the output electric energy of microbiological fuel cell in ground.This method can not maximize the output electric energy of microbiological fuel cell.Profit
Use maximum power point tracking technology（MPPT）Can when the load resistance of microbiological fuel cell output end is equal to its internal resistance of cell
To maximize the power output of microbiological fuel cell.Existing MPPT technique（Such as disturb and observe, gradient method）It is to pass through
Real-time optimization external load resistors value, maximize microbiological fuel cell output electric energy.Such method needs substantial amounts of control
Circuit.Traditional microbiological fuel cells applications circuit needs to configure external cell（Such as lithium battery, lead accumulator）For optimal work(
The circuit power supplies such as rate point tracking circuit, booster circuit.Due to external cell restricted lifetime, answering for microbiological fuel cell is limited
With.
The content of the invention
In order to overcome the shortcomings of the prior art, the utility model provide a kind of microbiological fuel cell energy harvesting and
Its self-powered circuit.
To achieve the above object, the utility model is realized using following technical scheme：A kind of microbiological fuel cell energy
Acquisition and its self-powered circuit, it is characterised in that：Including microbiological fuel cell, self-powered circuit, the tracking of best power point
Circuit and booster circuit；The output of microbiological fuel cell one connects with the booster circuit one input, another output and institute
State the tracking input connection of circuit first of best power point；The booster circuit output is electric with load, the tracking of best power point respectively
The input connection of road second；Best power point tracks circuit output and connected with another input of the booster circuit；Self-powered circuit is defeated
Go out and connected with the best power point tracking input of circuit the 3rd.
In the embodiment of the utility model one, the self-powered circuit includes initialization module and the first energy-storage travelling wave tube.
In the embodiment of the utility model one, the booster circuit output and the tracking input of circuit second of best power point
Between be provided with a diode；The diode anode connects booster circuit output, and the diode cathode connects the tracking of best power point
Circuit second inputs.
In the embodiment of the utility model one, a voltage-regulator diode is provided between the booster circuit output and load；
Voltage-regulator diode negative electrode exports with booster circuit, plus earth.
In the embodiment of the utility model one, the booster circuit output is also connected with the second energy-storage travelling wave tube.
In the embodiment of the utility model one, best power point tracking circuit include hysteresis comparator, phase inverter and
Digital signal processor；The microbiological fuel cell output inputs with hysteresis comparator one respectively, digital signal processor is defeated
Enter connection；Another input of hysteresis comparator connects with digital signal processor output；Hysteresis comparator exports to be inputted with phase inverter
Connection；Phase inverter output is connected with booster circuit.
In the embodiment of the utility model one, best power point tracking circuit output and another input of the booster circuit
Between be provided with a metal-oxide-semiconductor.
Compared with prior art, the utility model is powered using microorganism power supply, coordinates best power point tracking circuit, real
The self-powered function of existing microbiological fuel cell application circuit；The circuit system is by initializing, after whole circuit normal work,
The output of microbiological fuel cell is only leaned on without that can be just load and microbiological fuel cell by external cell
Application circuit provides electric energy.
Brief description of the drawings
Fig. 1 is the entire block diagram of the self-powered circuit design described in the utility model based on microbiological fuel cell.
Fig. 2 is that self-powered flow is shown in the self-powered circuit design described in the utility model based on microbiological fuel cell
It is intended to.
Fig. 3 is best power point in the self-powered circuit design described in the utility model based on microbiological fuel cell
Track circuit diagram.
Fig. 4 is Digital Signal Processing in the self-powered circuit design described in the utility model based on microbiological fuel cell
Device workflow schematic diagram.
Fig. 5 is booster circuit knot in the self-powered circuit design described in the utility model based on microbiological fuel cell
Structure schematic diagram.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described further to the utility model.
The utility model provides a kind of microbiological fuel cell energy harvesting and its self-powered circuit, and it includes microorganism
Fuel cell, self-powered circuit, best power point tracking circuit and booster circuit；The microbiological fuel cell one exports and institute
The input connection of booster circuit one is stated, another output connects with the best power point tracking input of circuit first；The boosting electricity
Road output connects with load, the tracking input of circuit second of best power point respectively；Best power point track circuit output with it is described
Another input connection of booster circuit；Self-powered circuit exports to be connected with the best power point tracking input of circuit the 3rd.
Fig. 1 is the entire block diagram of the self-powered circuit system described in the utility model based on microbiological fuel cell.
In the embodiment of the utility model one, the self-powered circuit includes initialization module and the first energy-storage travelling wave tube.
Self-powered schematic flow sheet in self-powered circuit designs of the Fig. 2 based on microbiological fuel cell.Because in booster circuit
In addition to a small number of diodes, groundwork element is all energy-storage travelling wave tube, and loss power is low.Again because deposit microbiological fuel cell
It is that raw material sources are extensive using riverbed sludge or pollutant as organic matter.Unlike solar energy has the condition systems such as light application time, intensity
About, the condition that energy continues forever can substantially be reached.The self-powered circuit with initialization module of the utility model design is not
Include such as third party such as lithium battery, lead accumulator energy storage equipment.Before integrated circuit start-up operation, initialization module is to storage
Energy component capacitance is charged.It is set to have the ability to drive the tracking circuit work of best power point, producing control signal makes boosting electric
Road normal work.Energy-storage travelling wave tube electric capacity stores output electric energy and can through circuit and load and best power point tracking circuit is powered,
Benign cycle is formed, is finally reached self-powered purpose.
In the embodiment of the utility model one, the booster circuit output and the tracking input of circuit second of best power point
Between be provided with a diode；The diode anode connects booster circuit output, and the diode cathode connects the tracking of best power point
Circuit second inputs.
In the embodiment of the utility model one, a voltage-regulator diode is provided between the booster circuit output and load；
Voltage-regulator diode negative electrode exports with booster circuit, plus earth.
In the embodiment of the utility model one, the booster circuit output is also connected with the second energy-storage travelling wave tube.
In the embodiment of the utility model one, best power point tracking circuit include hysteresis comparator, phase inverter and
Digital signal processor；The microbiological fuel cell output inputs with hysteresis comparator one respectively, digital signal processor is defeated
Enter connection；Another input of hysteresis comparator connects with digital signal processor output；Hysteresis comparator exports to be inputted with phase inverter
Connection；Phase inverter output is connected with booster circuit.
Fig. 3 is that best power point described in the utility model tracks circuit diagram.After initialization, energy-storage travelling wave tube A
Electric energy can drive best power point tracking circuit work.Digital signal processor collection is micro- in best power point tracking circuit
The real-time voltage and current value of biological fuel cell, the performance number at the moment is calculated, then compared with last moment performance number
Compared with judging whether to increase according to the control flow shown in Fig. 4 or reduce hysteresis comparator reference voltage level UR, export different duties
The control signal of ratio, the charge and discharge process time of inductance in booster circuit is controlled, the output voltage of microbiological fuel cell is begun
Its best power point voltage is maintained at eventually is implemented around the purpose that microbiological fuel cell maximizes output.
In the embodiment of the utility model one, best power point tracking circuit output and another input of the booster circuit
Between be provided with a metal-oxide-semiconductor.
Fig. 5 is boost circuit structure in the self-powered circuit design described in the utility model based on microbiological fuel cell
Schematic diagram.Because needing to allow microbiological fuel cell output voltage to work all the time near best power point voltage, so this practicality
New booster circuit must operate under continuous mode.Booster circuit can be divided into by conducting state according to metal-oxide-semiconductor gate signal
With cut-off state.In the on-state microbiological fuel cell to inductance fill can, the electric current increase in inductor.Inductor passes through
Magnetic induction loop is given fills energy as the electric capacity of energy-storage travelling wave tube.Now microbiological fuel cell voltage its voltage drop because of output electric energy
It is low.In the off state, booster circuit is disconnected because of loop, and energy neither increases nor declined in inductor.Energy-storage travelling wave tube electric capacity
Only discharge process.Now microbiological fuel cell voltage rises.
Method of work of the present utility model is illustrated briefly below：S1：The first energy-storage travelling wave tube electric capacity is entered by initialization module
Row charging, it is set to have the ability to drive best power point to track circuit work, best power point tracking circuit produces control signal to liter
Volt circuit；S2：The real-time voltage U and electric current of digital signal processor collection microbiological fuel cell in best power point tracking circuit
Value I, calculate the performance number P=U*I at the moment；S3：CalculateIfThen；
Otherwise；Wherein,For the voltage of last moment,,For the electric current of last moment；
The hysteresis comparator now reference voltage level of circuit is tracked for best power point,The sluggishness of circuit is tracked for best power point
Comparator last moment reference voltage level,For hysteresis comparator reference voltage level increment；S4：Controlling switch pipe gate pole is believed
Number, ensure that microbiological fuel cell output voltage works near best power point voltage all the time.S4 comprises the following steps：According to
Booster circuit is divided into conducting state and cut-off state by metal-oxide-semiconductor gate signal：Microbiological fuel cell is to liter in the on-state
The inductor of volt circuit fill can, the electric current increase in inductor, inductor fills energy by magnetic induction loop to the second energy-storage travelling wave tube B,
Now microbiological fuel cell voltage its voltage reduction because of output electric energy；In the off state, booster circuit because loop disconnect,
Energy neither increases nor declined in inductor, and the second energy-storage travelling wave tube B only has discharge process, now microbiological fuel cell voltage
Rise.
Above is preferred embodiment of the present utility model, all changes made according to technical solutions of the utility model are produced
Function without departing from technical solutions of the utility model scope when, belong to the scope of protection of the utility model.
Claims (7)
1. a kind of microbiological fuel cell energy harvesting and its self-powered circuit, it is characterised in that：Including Microbial fuel electricity
Pond, self-powered circuit, best power point tracking circuit and booster circuit；The output of microbiological fuel cell one and the boosting
The input connection of circuit one, another output connect with the best power point tracking input of circuit first；The booster circuit output
Connected respectively with load, the tracking input of circuit second of best power point；Best power point tracks circuit output and the boosting electricity
Another input connection in road；Self-powered circuit exports to be connected with the best power point tracking input of circuit the 3rd.
2. microbiological fuel cell energy harvesting according to claim 1 and its self-powered circuit, it is characterised in that：Institute
Stating self-powered circuit includes initialization module and the first energy-storage travelling wave tube.
3. microbiological fuel cell energy harvesting according to claim 1 and its self-powered circuit, it is characterised in that：Institute
State and be provided with a diode between booster circuit output and the tracking input of circuit second of best power point；The diode anode connects
Booster circuit exports, and the diode cathode connects best power point tracking circuit second and inputted.
4. microbiological fuel cell energy harvesting according to claim 1 and its self-powered circuit, it is characterised in that：Institute
State and be provided with a voltage-regulator diode between booster circuit output and load；Voltage-regulator diode negative electrode exports with booster circuit, anode
Ground connection.
5. microbiological fuel cell energy harvesting according to claim 1 and its self-powered circuit, it is characterised in that：Institute
Booster circuit output is stated also to be connected with the second energy-storage travelling wave tube.
6. microbiological fuel cell energy harvesting according to claim 1 and its self-powered circuit, it is characterised in that：Institute
Stating best power point tracking circuit includes hysteresis comparator, phase inverter and digital signal processor；The microbiological fuel cell
Output inputs with hysteresis comparator one respectively, digital signal processor input connection；Another input of hysteresis comparator is believed with numeral
The output connection of number processor；Hysteresis comparator exports to be connected with phase inverter input；Phase inverter output is connected with booster circuit.
7. microbiological fuel cell energy harvesting according to claim 1 and its self-powered circuit, it is characterised in that：Most
A metal-oxide-semiconductor is provided between good power points tracking circuit output and another input of the booster circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720501824.6U CN206775179U (en) | 2017-05-08 | 2017-05-08 | A kind of microbiological fuel cell energy harvesting and its self-powered circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720501824.6U CN206775179U (en) | 2017-05-08 | 2017-05-08 | A kind of microbiological fuel cell energy harvesting and its self-powered circuit |
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| Publication Number | Publication Date |
|---|---|
| CN206775179U true CN206775179U (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720501824.6U Expired - Fee Related CN206775179U (en) | 2017-05-08 | 2017-05-08 | A kind of microbiological fuel cell energy harvesting and its self-powered circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111917334A (en) * | 2019-05-08 | 2020-11-10 | 中国移动通信集团湖南有限公司 | Internet of things application system and power supply method of Internet of things terminal |
| CN114122474A (en) * | 2021-11-25 | 2022-03-01 | 东南大学 | Deposit microbial fuel cell self-sustaining power management system capable of wireless communication |
-
2017
- 2017-05-08 CN CN201720501824.6U patent/CN206775179U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111917334A (en) * | 2019-05-08 | 2020-11-10 | 中国移动通信集团湖南有限公司 | Internet of things application system and power supply method of Internet of things terminal |
| CN114122474A (en) * | 2021-11-25 | 2022-03-01 | 东南大学 | Deposit microbial fuel cell self-sustaining power management system capable of wireless communication |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |